All new reproduction of the discontinued Nissan 350Z track model aluminum rear brake calipers. Sold in pairs, loaded with pads & pad related hardware. You will need two pairs to fully equip our forged dual caliper rear knuckles for use with an independent hydraulic handbrake master. If you have base model brakes (12.1" rotor) on your G35, 350Z, 370Z, or G37 you will need to source a pair of the larger track model rotors (12.7") from a local auto parts store or online at OEM replacement parts sites such as rockauto.com POWER STOP JBR1108XPR Extreme Performance Drilled and Slotted is $185/Pair there. Search other suppliers for Nissan, 2005, 350Z, rotor, with brembo. Rear OEM bolts are different so you will need part number 08041-2351A bolts but note washers 44000C are the same between Base & Track model brakes (Just buy the OEM bolts for $5~8ea).